Scientists both cruel and curious have demonstrated that a Bulldog Ant cut in two will continue to lash out at anything nearby, including itself, the heads and bodies biting and stinging their missing halves until either death or their nest mates claim them. The crew that hit Wayne Jewellers was like that—solid planning, flawless execution, but three days in a cabin and they were at each other’s throats.

Take, for example, the way Kit Rosland drowned Teddy Wilson in the toilet. Teddy had saved their lives, darting the getaway car down side streets and arranging for the second vehicle they swapped into.… Read the rest